This is how NASCAR engines are made!

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Being one of the most popular Motorsports in USA, with a huge audience all around the World, NASCAR, is well known for high speed and very dangerous accidents.

They are powered by very powerful engines, 725hp by 2015 regulations “Flat valve lifters will be replaced with roller valve lifters; lower differential gear ratios (targeting 9,000 RPM) will be in use and the rear spoiler height will be reduced from 8 inches to 6 inches.” – was written on NASCAR’s official statement on September 2014.
So, what we have here is a video showing how these engines are made. Seems like the video comes from 2013 or earlier but work to end up in such amazing results is so incredible!
Let’s check it out!